Compare Generators Side-by-Side

Generator

Generator

14000 W

390 lbs

120/240V 60 Hz

120/240V

Honda GX630 OHV V-Twin

760 cc OHV V-Twin, cast iron sleeve

Electric

Electric

3 years

3 years

14000 W

15000 W

10000 W

13750 W

CARB, EPA

EPA, ANSI/PGMA G300-2023

696471618600

840876120712

11700

12000

10000

13750

8

11

60

60

Honda GX630 OHV V-Twin

760 cc OHV V-Twin

cast iron sleeve

10W-30

Full Synthetic 5W-30, 10W-40, 10W-30

8

11

Low oil and overload protection

Low oil and overload protection

Battery and wheel kit

Oil, funnel, tool kit, battery charger, propane hose, battery charging cables, battery, and wheel kit

3

The DEWALT DXGN14000 is an 11,700-watt gasoline generator built for job sites and contractors who need sustained power for multiple heavy-duty tools and appliances simultaneously. With 14,000 peak watts and a Honda GX630 V-Twin engine, this unit can start large compressors, welders, and air conditioning units while running smaller devices in parallel. The 10-gallon fuel tank delivers 8 hours of runtime at 50% load, meaning a full day of work on a single fill-up at moderate power draw. This is a stationary workhorse, not a portable backup. At 344 pounds and 31.6 by 33.3 by 36.4 inches, it demands a dedicated storage location and a wheel kit to move between sites.

The Firman T12071 is a 12,000-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 15,000 starting watts and 12,000 running watts from a 760cc V-Twin engine with cast iron sleeves. This wattage handles most household circuits simultaneously, powering refrigerators, air conditioning units, well pumps, and power tools without strain. The tri-fuel design eliminates the need to choose between fuel sources. Users in areas with natural gas lines can tap into permanent fuel supplies. Propane users gain the ability to store fuel long-term without degradation. Gasoline remains the highest-output option for maximum starting power during heavy load surges. The 13.3-gallon fuel tank delivers 11 hours of runtime at 50 percent load on gasoline, meaning users can power a job site or home backup through a full work day or overnight without refueling. Propane cuts running watts to 11,000 and natural gas to 10,000, trading some capacity for fuel flexibility. The copper windings and low THD under 5 percent protect sensitive electronics like laptops, medical equipment, and modern televisions from voltage spikes. A 3-year residential warranty covers defects across all three fuel modes.